Which of the activities is critical in terms of time? Where to start when it is about optimizing the code? The activities monitor helps you answer this questions.
During every basic step of the simulation, a certain set of activities are run. There are numerical procedures for computing the next state of the variables and there are activities for producing a graphical output on the screen. How much time is consumed during by the different activities? Which of them is the bottleneck? The activities monitor provides this information.